20113430455 has 8 divisors (see below), whose sum is σ = 24137870400. Its totient is φ = 16089575136.

The previous prime is 20113430453. The next prime is 20113430479. The reversal of 20113430455 is 55403431102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20113430455 - 2¹ = 20113430453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113430453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66520 + ... + 211309.

It is an arithmetic number, because the mean of its divisors is an integer number (3017233800).

Almost surely, 2^20113430455 is an apocalyptic number.

20113430455 is a deficient number, since it is larger than the sum of its proper divisors (4024439945).

20113430455 is a wasteful number, since it uses less digits than its factorization.

20113430455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292313.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20113430455 its reverse (55403431102), we get a palindrome (75516861557).

The spelling of 20113430455 in words is "twenty billion, one hundred thirteen million, four hundred thirty thousand, four hundred fifty-five".